The manifolds have a maximum working pressure of 5294 psi (365 bar) for PR and 920 psi (63.4 bar) for CF. Manifolds are mounted directly on the cylinder rack to connect every extinguishing agent cylinder with the pipe network. The manifolds are manufactured with two and three inlets. A maximum of 18 inlets can be assembled in one row (see racking instruction in the Oxeo manuals for details). Each inlet is equipped with a check valve which releases the extinguishing agent in flow direction and prevents the flow in the opposite direction.